Table 2 The choice of root-canal preparation techniques and instruments
Root canal preparation techniques | Root canal instrument | ||||
|---|---|---|---|---|---|
Technique | Frequency | % | Instrument | Frequency | % |
Filing (push-pull) | 36 | 27.5 | File | 40 | 30.5 |
Step back | 69 | 52.7 | Reamer | 3 | 0.2 |
Step down | 26 | 19.8 | Hedström file | 6 | 4.6 |
|  |  |  | File + hedström file | 30 | 22.9 |
| Â | Â | Â | File + reamer | 20 | 15.3 |
|  |  |  | File, reamer + hedström file | 32 | 24.4 |